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System Adjustment
System Adjustment
1. Open gun air valve (23).
2. Test spray pattern on cardboard. Hold gun 18 to 30
in. (45 to 75 cm) from surface. Use this spray dis-
tance for most applications. Overlap each stroke
50% in a circular motion.
3. Adjust gun air valve (23) to achieve uniform, round
spray pattern. It may be necessary to change spray
nozzle to achieve desired spray pattern.
14
23
ti4004a
23
ti3999a
NOTE: Keep a small amount of air flowing through
air line and gun tip to prevent material from backing
up needle.
4. To select correct nozzle for your applications, con-
sider size of aggregate in material and coarseness
of spray pattern. Remember the larger the nozzle,
the larger the spray pattern. See Nozzle Selection,
page 13.
NOTE: More air produces a finer finish; less air pro-
duces a coarse finish.
5. When adjusting flow adjustment nut (b), release trig-
ger (C), then adjust.
C
If adjusting while triggered, needle will turn but provide
no adjustment.
If flow adjustment nut will not turn, check to see if it is:
•
Set to maximum adjustment, or
•
If there is material on threads. Clean threads as
needed.
6. Check material consistency often. Material may
thicken as it sits and slow down production or affect
spray pattern. Thin with mater as needed to main-
tain proper consistency.
B
ti4338a
313384B
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